Video: Nigrosin siv rau dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nws kuj tuaj yeem yog siv kom stain hlwb uas muag heev dhau los ua kom sov-kho. Peb siv nigrosin ua raws li peb qhov tsis zoo stain. Nigrosin yog acidic stain. Qhov no txhais tau hais tias cov stain yooj yim muab ib qho hydrogen ion thiab ua rau tsis zoo.
Tib neeg kuj nug tias, Nigrosin yog xim dab tsi?
Nigrosin . Nigrosin (CI 50415, Solvent dub 5) yog ib qho kev sib xyaw ntawm cov xim dub hluavtaws ua los ntawm cov cua sov sib xyaw ntawm nitrobenzene, aniline, thiab hydrochloric acid nyob rau hauv muaj tooj liab lossis hlau.
Ib sab saum toj, yog Nigrosin acidic lossis yooj yim? Yog hais tias cov xim ntawm cov dye nyob rau hauv qhov zoo ion, raws li nyob rau hauv cov ntaub ntawv saum toj no, nws yog hu ua a yooj yim dye (piv txwv: methylene xiav , siv lead ua violet , safranin). Yog tias qhov xim xim yog nyob rau hauv qhov tsis zoo them ion, nws yog hu ua an acidic dye (piv txwv: nigrosin ua , congo liab).
Ib yam li ntawd, koj yuav ua li cas rau Nigrosin stain?
Mix 1 feem (0.1 mL) staining tov nrog ib tug sib npaug ntim (0.1 mL) ntawm phev. Tom qab 1-2 feeb, ib qho smear yog ua, cua qhuav, thiab tshuaj xyuas nyob rau hauv ib tug tsis zoo theem-zoo microscope. Sib tov 1 tee dej phev nrog 2 tee ntawm eosin tov. Tos li 15 s thiab ntxiv 3 tee ntawm 100/gL ntawm nigrosin ua daws.
Qhov tsis zoo staining qhia dab tsi?
Tsis zoo stain . Los ntawm Wikipedia, dawb encyclopedia. Tsis zoo staining yog ib txoj kev tsim, feem ntau siv rau hauv kev kuaj mob microscopy, rau qhov sib txawv ntawm cov qauv nyias nyias nrog cov kua dej optically opaque. Hauv cov txheej txheem no, keeb kwm yav dhau yog stained, tawm hauv qhov tseeb specimen untouched, thiab yog li pom.
Pom zoo:
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